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655-705 (Hard)|   Conclusion|   Inference|         
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Bunuel
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The local agricultural official gave the fruit growers of the District 13 Apr 2020, 02:16
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C
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55% (hard)

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66% (02:06) correct 34% (02:13) wrong based on 792 sessions

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Competition Mode Question



The local agricultural official gave the fruit growers of the District 10 Farmers Cooperative a new pesticide that they applied for a period of three years to their pear orchards in place of the pesticide they had formerly applied. During those three years, the proportion of pears lost to insects was significantly less than it had been during the previous three-year period. On the basis of these results, the official concluded that the new pesticide was more effective than the old pesticide, at least in the short term, in limiting the loss of certain fruit to insects.

The official’s conclusion is most strongly supported if which one of the following groups of trees did not show a reduction in losses of fruit to insects?


(A) peach trees grown in the district that were treated with the new pesticide instead of the old pesticide

(B) peach trees grown in the district that were treated with the new pesticide in addition to the old pesticide

(C) pear trees grown in the district that were treated with the old pesticide instead of the new pesticide

(D) pear trees grown in neighboring district that were treated with neither the old nor the new pesticide

(E) pear trees grown in a neighboring district that were treated with the new pesticide instead of the old pesticide
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C
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The local agricultural official gave the fruit growers of the District 13 Apr 2020, 06:21
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Quote:
The local agricultural official gave the fruit growers of the District 10 Farmers Cooperative a new pesticide that they applied for a period of three years to their pear orchards in place of the pesticide they had formerly applied. During those three years, the proportion of pears lost to insects was significantly less than it had been during the previous three-year period. On the basis of these results, the official concluded that the new pesticide was more effective than the old pesticide, at least in the short term, in limiting the loss of certain fruit to insects.

The official’s conclusion is most strongly supported if which one of the following groups of trees did not show a reduction in losses of fruit to insects?
(A) peach trees grown in the district that were treated with the new pesticide instead of the old pesticide
(B) peach trees grown in the district that were treated with the new pesticide in addition to the old pesticide
(C) pear trees grown in the district that were treated with the old pesticide instead of the new pesticide
(D) pear trees grown in neighboring district that were treated with neither the old nor the new pesticide
(E) pear trees grown in a neighboring district that were treated with the new pesticide instead of the old pesticide
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argument
= district applied new pest from official
= after 3 yrs there were less loss to insects than before
= thus, new pest help reduce loss to insects

strengthen
ans (C) if the old pest applied in the same district did not reduce the loss to insects, then the conclusion stands.
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The local agricultural official gave the fruit growers of the District 14 Apr 2020, 00:38
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Stimulus: the local official gave fruit growers of the district 10 a new pesticide to try for 3 years and it was found that in those 3 years the new pesticide less pears were lost to insects. On the basis of this the officials concluded that the new pesticide was more effective than old one.

The official’s conclusion is most strongly supported if which one of the following groups of trees did not show a reduction in losses of fruit to insects?


(A) peach trees grown in the district that were treated with the new pesticide instead of the old pesticide

(B) peach trees grown in the district that were treated with the new pesticide in addition to the old pesticide

(C) pear trees grown in the district that were treated with the old pesticide instead of the new pesticide

(D) pear trees grown in neighboring district that were treated with neither the old nor the new pesticide

(E) pear trees grown in a neighboring district that were treated with the new pesticide instead of the old pesticide


If some of the trees were treated with old one and they did not show a reduction in number of pesticide then we can prove that the new pesticide was effective than the older one

IMO C
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The local agricultural official gave the fruit growers of the District 30 Apr 2020, 12:12
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Bunuel

Competition Mode Question



The local agricultural official gave the fruit growers of the District 10 Farmers Cooperative a new pesticide that they applied for a period of three years to their pear orchards in place of the pesticide they had formerly applied. During those three years, the proportion of pears lost to insects was significantly less than it had been during the previous three-year period. On the basis of these results, the official concluded that the new pesticide was more effective than the old pesticide, at least in the short term, in limiting the loss of certain fruit to insects.

The official’s conclusion is most strongly supported if which one of the following groups of trees did not show a reduction in losses of fruit to insects?


(A) peach trees grown in the district that were treated with the new pesticide instead of the old pesticide

(B) peach trees grown in the district that were treated with the new pesticide in addition to the old pesticide

(C) pear trees grown in the district that were treated with the old pesticide instead of the new pesticide

(D) pear trees grown in neighboring district that were treated with neither the old nor the new pesticide

(E) pear trees grown in a neighboring district that were treated with the new pesticide instead of the old pesticide
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Language of thequestion is very tricky otherwise the argument is easy.
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The local agricultural official gave the fruit growers of the District 26 Jun 2024, 08:26
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The local agricultural official gave the fruit growers of the District 10 Farmers Cooperative a new pesticide that they applied for a period of three years to their pear orchards in place of the pesticide they had formerly applied. During those three years, the proportion of pears lost to insects was significantly less than it had been during the previous three-year period. On the basis of these results, the official concluded that the new pesticide was more effective than the old pesticide, at least in the short term, in limiting the loss of certain fruit to insects.

The official’s conclusion is most strongly supported if which one of the following groups of trees did not show a reduction in losses of fruit to insects?

(A) peach trees grown in the district that were treated with the new pesticide instead of the old pesticide - WRONG. That's what passage already said. Tricky logic applied here. I tmight be good choice had C not been formulated as it is.

(B) peach trees grown in the district that were treated with the new pesticide in addition to the old pesticide - WRONG. Nothing about addition is said in the passage. So, it would be wrong to do it since it would gove ambiguous results.

(C) pear trees grown in the district that were treated with the old pesticide instead of the new pesticide - CORRECT. If this group show reduction then we are in trouble for how the conclusion is made. 

(D) pear trees grown in neighboring district that were treated with neither the old nor the new pesticide - WRONG. Irrelevant. 

(E) pear trees grown in a neighboring district that were treated with the new pesticide instead of the old pesticide - WRONG. Irrelevant.

Answer C.
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The local agricultural official gave the fruit growers of the District 24 Jan 2026, 18:02
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